Conformational Analysis of Nonplanar Archipelago Structures on a Cu (111) Surface by Molecular Imaging

Pengcheng Chen; Yogesh V. Joshi; Jordan N. Metz; Nan Yao; Yunlong Zhang

doi:10.1021/acs.energyfuels.0c01861

Conformational Analysis of Nonplanar Archipelago Structures on a Cu (111) Surface by Molecular Imaging

Pengcheng Chen, Yogesh V. Joshi, Jordan N. Metz, Nan Yao, Yunlong Zhang

Princeton Materials Institute

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We investigated some specially designed model compounds as proxies for archipelago structures in asphaltenes and heavy oils using noncontact atomic force microscopy (nc-AFM). Various adsorption conformations of three different kinds of linkers including aryl-aryl, aryl-CH2-aryl, and aryl-(CH2)3-aryl were identified. By focusing on the nature of linkages or bridges between aromatic cores, this work directly addresses the long-standing question on petroleum molecular structures by validating detailed features in images and overcoming challenges of nonplanar structures and conformations, providing a foundation to apply nc-AFM to unknown structures in petroleum.

Original language	English (US)
Pages (from-to)	12135-12141
Number of pages	7
Journal	Energy and Fuels
Volume	34
Issue number	10
DOIs	https://doi.org/10.1021/acs.energyfuels.0c01861
State	Published - Oct 15 2020

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology

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abstract = "We investigated some specially designed model compounds as proxies for archipelago structures in asphaltenes and heavy oils using noncontact atomic force microscopy (nc-AFM). Various adsorption conformations of three different kinds of linkers including aryl-aryl, aryl-CH2-aryl, and aryl-(CH2)3-aryl were identified. By focusing on the nature of linkages or bridges between aromatic cores, this work directly addresses the long-standing question on petroleum molecular structures by validating detailed features in images and overcoming challenges of nonplanar structures and conformations, providing a foundation to apply nc-AFM to unknown structures in petroleum.",

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AU - Yao, Nan

AU - Zhang, Yunlong

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AB - We investigated some specially designed model compounds as proxies for archipelago structures in asphaltenes and heavy oils using noncontact atomic force microscopy (nc-AFM). Various adsorption conformations of three different kinds of linkers including aryl-aryl, aryl-CH2-aryl, and aryl-(CH2)3-aryl were identified. By focusing on the nature of linkages or bridges between aromatic cores, this work directly addresses the long-standing question on petroleum molecular structures by validating detailed features in images and overcoming challenges of nonplanar structures and conformations, providing a foundation to apply nc-AFM to unknown structures in petroleum.

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Conformational Analysis of Nonplanar Archipelago Structures on a Cu (111) Surface by Molecular Imaging

Abstract

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